Finally got a car report: A pin(?) came loose in the differential(?) and banged around the transmission, destroying it. So now we need a new one. Forgive me, I don't know anything about cars, and it's been 20 whole minutes since I was informed of this diagnosis; I could have it wrong. The part about needing a new transmission is right, though.
And I finally figured out the problem with summer (besides overly busy auto repair shops): The early, early mornings and late, late evenings are the best times of day, and you definitely want to be awake for them. (Not that you have much choice. The heat keeps you from going to bed, and the birds keep you from staying in bed. Not to mention a little something called 18 hours of daylight.) But that leaves you chronically under-rested.
I guess I'm really not the first person to deduce this, since the solution is well known and time honored. Just don't call me this afternoon, because I may be lying under a big sombrero, trying it out.